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WDWD20EFRX
WDWD20PURX
▲ 52607 ▼

Release date: Q3 2012.

VS
▲ 52830 ▼

Release date: Q3 2014.

Effective Speed 
+0%
Real World Speed
Performance profile from 83,485 user samples
Benchmark your HDD here
64,359 User Benchmarks
Best Bench: 86% 2TB free
Worst Bench: 45% 2TB free (System drive)
Poor: 45% Great: 86%
SPEED RANK: 148th / 1014
19,126 User Benchmarks
Best Bench: 86% 2TB free
Worst Bench: 39% 122GB free
Poor: 39% Great: 86%
SPEED RANK: 153rd / 1014
Effective Speed
Effective HDD Speed 		66.4 % +0% 66.2 %
Average Score 
+3%
Read
Avg. Sequential Read Speed 		119 MB/s +3% 116 MB/s
Write
Avg. Sequential Write Speed 		112 MB/s 115 MB/s +3%
4K Read
Avg. 4K Random Read Speed 		0.8 MB/s Slightly faster random read.
+8% 		0.74 MB/s
4K Write
Avg. 4K Random Write Speed 		2.27 MB/s +1% 2.25 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		72.6 MB/s Faster mixed IO speed.
+17% 		62.2 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.89 MB/s 0.89 MB/s
SusWrite
Avg. Sustained Write Speed 		112 MB/s 115 MB/s +3%
Peak Score 
+4%
Read
Peak Sequential Read Speed 		155 MB/s +2% 152 MB/s
Write
Peak Sequential Write Speed 		144 MB/s 148 MB/s +3%
4K Read
Peak 4K Random Read Speed 		1 MB/s Faster peak random read.
+11% 		0.9 MB/s
4K Write
Peak 4K Random Write Speed 		2.7 MB/s 2.7 MB/s
Mixed
Peak Sequential Mixed IO Speed 		94.3 MB/s Faster peak mixed IO speed.
+19% 		79 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1 MB/s 1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		148 MB/s 151 MB/s +2%
Value & Sentiment 
+14%
Market Share
Based on 53,933,490 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.24 % Hugely higher market share.
+85% 		0.13 %
Value
Value For Money 		34.5 % 39.5 % Better value.
+14%
User Rating
UBM User Rating 		52 % 52 %
Price
Price (score) 		$77 $67 Cheaper.
+13%
Nice To Haves 
+16%
Age
Newest 		148 Months 124 Months More recent.
+16%
Specifications 
Capacity
Capacity 		2TB 2TB
Conclusion 
Average Bench 66.4%
Average Bench 66.2%

The 2TB version of WD's Red NAS range of hard drives has a performance profile that is similar to that of its larger 3TB sibling. Both drives lag behind the group average significantly in terms of overall performance. With an average read speed of 108 MB/s the 2TB Red is 36% slower than the group leaders which manage an average of 147 MB/s. There is a huge amount of hype around the "NAS" aspects of these drives but there is very little substance in terms of specific characteristics that make this drive better suited to a NAS than any other. The obvious factors such as energy efficiency and operating temperature are only marginally improved on these drives. I would personally prefer one of the far better performing Seagate Barracudas as when looking at a direct comparison of the Barracuda vs the Red it's clear that the performance of the Barracuda is better across the board. [Feb '14 HDrivePro]

MORE DETAILS

The WD Purple is a surveillance drive with low power consumption and a design that's optimized for 24x7 operation. There is actually little beyond marketing that separates the Purple from the Red and Green drives. They all share almost identical hardware. The thing that does differentiate the Purple drives is their firmware which supports AllFrame, a surveillance specific feature. Allframe handles the cache in a way that is optimized for video streams. The AllFrame technology however is only enabled when used in conjunction with a supported host controller, most of which are only found in dedicated NVR (Network Video Recording) devices. As a result there is no benefit in using this drive in a HTPC to record video streams, because the surveillance specific functions won't be enabled. In terms of effective speed the Purple lags the new Red and Green drives by around 26%. [Oct '14 HDrivePro]

MORE DETAILS

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We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by current cost per GB to yield value for money. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top HDDs. [HDrivePro]

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The Best
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Intel Core i5-12600K $159Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
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